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THE RELIEF MODEL
 

THE RELIEF MODEL

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    THE RELIEF MODEL THE RELIEF MODEL Presentation Transcript

    • The relief model
    • IndexKinds of relief model
      Fluvial model (rivers)
      Torrential model (torrents)
      Glacier model (glacier)
      Karstic model (subterranean water)
      Litoral model (swell)
      Eolic model (wind)
    • Fluvial model
      Form narrow pass, flood plains and wave-cut platform. This areas are very goods for the farming and the human occupation.
      Form valleys with “V”
      In Spain this kind of erosion is very frequent.
    • Fluvial model
      Narrow pass river Cares (Picos de Europa)
    • Fluvial model
      Flood plains (River Pas and Narcea)
    • Fluvial model
      Wave-cut platform (River Cinca)
    • Fluvial model
      Meanders of a river (Valle en artesa)
    • Fluvial model
      Valley with form “V”
    • Torrential model
      It type of relief model is very erosive and origin beautiful landscapes.
      Origin relieves like canyons and carcavas.
      When are accumulated the erode materials form alluvial fans erosions.
      They aren´t good areas for the population and farming.
    • Torrential model
      Carcavas Tabernas desert (Almería)
    • Torrential model
      Almadenes Canyon (Cieza) Río Lobos Canyon (Soria)
    • Torrential model
      Waterfalls and rapids. They are very frequents in high mountains.
    • Torrential model
      Ravines and narrow pass. The aggressive erosion origin for the water and the materials that the water bring, form the ravines.
    • Glacier model
      This kind of model is origin in high mountains areas, very colds zones.
      The human occupation is very small and this areas normally are touristic.
      The glacier valley has got “U” form and it has got quite population.
      Form glacier cirques and other forms.
    • Glacier model
      Glacier cirques. Origin for the accumulation of ice.
    • Glacier model
      “U” form valley origin form the weight of the block of ice.
    • Glacier model
      Glacier erosion.
    • Glacier model
      Kinds of erosion in the glacier model.
      Glacier spite, morren and glacier cirque.
    • Glacier model
    • Glacier model
    • Glacier model
      Glacier lake. Typical in post-glacier landscape
    • Glacier model
      Erosion in rocks. The water infiltrate in the rocks, and when is freeze, this water occupy more, and the rock is broken.
    • Karstic model
      In areas forms for limestone or plaster, the water infiltrate in crack, and it dissolving the rock and form galleries and caverns.
      There are two types:
      - Superficial: origin form the dissolution and the roof of the cavity like dolines.
      - Subterranean.
    • Karstic model
      Galleries and caverns
    • Karstic model
      When the water is infiltrate can produce stalactites and stalagmite for the calcium carbonate dissolved in the water.
    • Karstic model
      Dolines.
    • Littoral model
      The swell is an agent very erosive.
      When the swell is more aggressive form cliffs, capes and ledges.
      When the swell is not very aggressive form beaches, the place where the eroded materials are accumulated.
      When the cliffs are eroded form abrasion platforms.
    • Littoral model
      Cliffs. Platform abrasion.
    • Littoral model
      Cliffs. Platform abrasion.
    • Littoral model
      Formation of cliffs.
    • Littoral model
      When there is a cliff can origin arches.
    • Littoral model
      In the littoral model can origin beaches, tombolos and arrows.
    • Littoral model
      Littoral lakes.
    • Eolic model
      In Spain this model is not very important, but the wind transport the sand accumulated in the beaches, origin coastal dunes.
      Is predominant in deserted zones.
      When the wind carry the sand and the clay form rocky deserts.
      When there are sedimentation of sand, is origin dunes field.
    • Eolic model
      The particles in the wind origin corrosion in rocks so the rocks have got different shapes.
    • Eolic model
      Rocky deserts.
    • Eolic model
      Dunes fields.
    • The end
      Ana BelénAgarrabeitiaCasado 3B